Tag Archives: info

Adding Let’s Encrypt’s new root and intermediate certificates to Mozilla applications

On September 30, 2021, Let’s Encrypt’s DST Root CA X3 cross-sign expired, leaving many web browsers to report that sites using Let’s Encrypt SSL certificates were “untrusted” or “unknown.”

Let’s Encrypt did, in fact, implement a new root and intermediate certificates some time ago, but after the built-in certificate stores in the Mozilla applications shipped with all versions of ArcaOS 5.0 to date (5.0 through 5.0.6) were configured. Thus, these new certificates were not included in those builds, and as a result, the new root certificate is indeed unknown.

The fix is relatively simple, and a rather common procedure for all browsers and email clients. To bring your Firefox, Thunderbird, and SeaMonkey certificate stores up to date, and learn how to do this for other new certificates as they become available, we’ve added a new wiki page, here.

Edited to add links to further information (off-site):

Let’s Encrypt – Chain of Trust
Let’s Encrypt – DST Root CA X3 Expiration (September 2021)

Warpstock 2021 Online

Tune in to Warpstock 2021 Online

Warpstock 2021 will happen online at 12:00pm EDT (16:00 UTC) this  Saturday, September 18.

Sessions will be a mix of live and prerecorded presentations, in 45-50-minute slots, scheduled to start on the hour.

David Azarewicz, Lewis Rosenthal, and Alex Taylor will be among those presenting this year on a variety of topics of interest concerning ArcaOS 5.0 and 5.1, device drivers, UEFI, GPT, and more.

Questions may be posed via YouTube Chat as well as IRC during the event.

The WarpEvents YouTube channel is the place to watch the event stream.

The URL for the #warpstock IRC channel is: ircs://irc.libera.chat:6697/warpstock (TLS encrypted),
or irc://irc.libera.chat/warpstock (plain text), or https://web.libera.chat/  (web interface, type #warpstock into Channel field).

The conference is entirely free this year, and no registration is necessary.

Warpstock Europe 2021

Join us for Warpstock Europe 2021 Online

Warpstock Europe 2021 will begin online at 14:00 UTC this coming Saturday, June 5. (For quick reference, that’s 10am EDT/7am PDT in the US and Canada, and 16:00 CET.)

Sessions will be a mix of live and prerecorded presentations, with the presenters available to answer questions in realtime, submitted during the event via IRC. See the Warpstock Europe website for details.

The Warpstock Europe YouTube channel is the place to watch the event stream. This channel should be viewable with any ArcaOS release, using Firefox or SeaMonkey, or any other device or OS you might want to use.

IRC Channel on Freenode: #WSE2021.

The conference is entirely free this year, and no registration is necessary.

Both Lewis Rosenthal and Alex Taylor will be among those presenting this year.

Warpstock 2020 Online

Tune in to Warpstock 2020 Online

Warpstock 2020 will happen online at 9:00am EST (14:00 UTC) this  Saturday, November 7, for those in North America and western Europe, and sessions will repeat in a second block beginning at 8:00pm EST (01:00 UTC, Sunday, November 8) for those in the Asia/Pacific region and eastern Europe. Each block should only be 3-4 hours in length.

Sessions will be a mix of live and prerecorded presentations, with the presenters available to answer questions in realtime, submitted during the event via IRC or YouTube chat.

The WarpEvents YouTube channel is the place to watch the event stream. This channel should be viewable with any ArcaOS release, using Firefox or SeaMonkey, or any other device or OS you might want to use.

IRC Channel: irc://freenode/warpstock

The conference is entirely free this year, and no registration is necessary.

Both David Azarewicz and Lewis Rosenthal will be among those presenting this year.

Arca Noae progress report: ArcaOS in your language

Translation work continues for ArcaOS. General availability of German and Spanish editions of ArcaOS are anticipated for the 5.0.5 release, with more languages slated to follow. We are making tremendous strides toward achieving the goal of a non-English reader to be able to install and run ArcaOS with minimal effort.

Translators are invited to join a core team working on the project. If you have the linguistic skills, enjoy a challenge, and would like to participate in a truly fun and rewarding endeavor, please let us know. Translators automatically become members of the test team, with early access to development releases (among other benefits).

Potential localized versions of ArcaOS include:

  • German
  • Spanish
  • French
  • Italian
  • Dutch
  • Portuguese
  • Japanese
  • Chinese (Simplified)
  • Chinese (Traditioinal)
  • Korean
  • Russian

(This is by no means a promise to deliver any of the above. Partial work has at least been done on most of the above translations, however.)

Need a language not listed above? Need one of the above languages completed sooner? Talk to us about specific localization needs for your enterprise.

Don’t have ArcaOS yet? Now is a great time to pick up a license or two and replace that aging Warp 4 or eComStation installation and get to know what’s new and improved. ArcaOS runs the vast majority of existing OS/2 Warp 4 software, because it really is OS/2 – just better. ArcaOS supports more modern hardware than any other OS/2 distribution available today, making hardware upgrades much easier than ever before.

Arca Noae progress report: USB, ArcaOS updater, multimedia

Here are some of the recent happenings around the Arca Noae labs and design studios:

We’ve recently made significant progress toward localizing various parts, particularly for German and Spanish, and will soon have a new test build of the CWMM classes in Spanish (a completely new translation for this component).


We continue to improve the update process for the next ArcaOS release, as we find edge cases where the current updater doesn’t quite finish due to unexpected conditions in the target system. (As a reminder, please check the ArcaOS Updating wiki page before beginning an update to the latest release. There you’ll find hints and tips to help avoid – or resolve – some known problems.)


When IBM left off USB driver development, OS/2 had a working, 16-bit USB 1.x and 2.0 driver stack. Fast forward to 2019, and this is no longer adequate for the needs of today’s hardware.

The Arca Noae USB stack is now fully 32-bit, and USB 3 support development continues to make good progress. Implementing USB 3 support has been tedious because the OS/2 USB architecture didn’t accommodate the peculiarities of USB 3 well.

Adding USB 3 support was not as simple as just writing a new xHCI driver. Significant changes were required throughout the entire USB stack, including changes to USBD and the OHCI, UHCI, and EHCI drivers. The xHCI driver as it exists today in beta testing works quite well. There are just a couple of things that still need to be done before we will be able to release it for general availability. One thing is to implement support for Isochronous transfers (audio and video devices). The second thing is to improve the error recovery speed. Error recovery speed was not an issue with USB 2 because USB 2 devices rarely, if ever, had errors. Super Speed (USB 3) devices operating at the new USB 3 speeds have higher error rates so the error recovery speed is important. We are actively working to resolve these last two issues.

Once the xHCI (USB 3) driver is released, the Arca Noae USB stack will make it possible to install and run ArcaOS on systems which lack USB 2.0 (EHCI) controllers. (Even though many modern systems advertise the availability of USB 2.0 ports, these ports are indeed wired to xHCI controllers. Without an xHCI driver, this will result in loss of keyboard and mouse control shortly after boot and the inability to mount the installation ISO from USB-attached media.)


Don’t have ArcaOS yet? Now is a great time to pick up a license or two and replace that aging Warp 4 or eComStation installation and get to know what’s new and improved. ArcaOS supports more modern hardware than any other OS/2 distribution available today, making hardware upgrades much easier than ever before.